Physicsmedium · Past Paper
The power of an engine which can lift 200 kg of water through 50 m in 10 seconds is (g=10 m/s^2):
A1000 W
B5000 W
C10000 W
D2000 W
✓ Correct Answer: C — 10000 W
Work = mgh = 200 * 10 * 50 = 100,000 J. Power = Work/time = 100,000 / 10 = 10,000 W.
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